Count Alphabets Digits and Symbols in a String

#include <stdio.h>
#include <stdint.h>

void classify_chars(const char *str, uint8_t *alpha, uint8_t *digit, uint8_t *symbol) {
    // Your logic here
    int i=0;
    char ascii;
    while(str[i]!='\0'){
    ascii=str[i];
    if(ascii>='A' && ascii<='Z' ||(ascii>='a' && ascii<='z')){
        *alpha=*alpha +1;
    }
    else if(ascii>='0' && ascii<='9'){
       *digit=*digit +1;
    }
   else if(ascii !=' '){*symbol=*symbol +1;}
   i++;
    }
}

int main() {
    char str[101];
    fgets(str, sizeof(str), stdin);

    // Remove newline
    uint8_t i = 0;
    while (str[i]) {
        if (str[i] == '\n') {
            str[i] = '\0';
            break;
        }
        i++;
    }

    uint8_t alpha = 0, digit = 0, symbol = 0;
    classify_chars(str, &alpha, &digit, &symbol);
    printf("Alphabets = %u\nDigits = %u\nSymbols = %u", alpha, digit, symbol);
    return 0;
}